As Carl Sagan liked to put it, when you peered into outer space, you were also looking back in time. And the view could get a bit... cloudy.

We've been debating back and forth about whether to post some of the mixes that are more obscured by tape hiss, muffled bass and other artifacts of a history probably as interesting as the recording itself. In the end, we decided that if we can look through the clouds to see it -- if there's still something great there -- then there might be some value if listeners want to turn up the power on their own telescopes too.

This is a set from DJ Rush, featuring (now!) classic House Music and Disco, reputedly from 1990.